diff options
Diffstat (limited to 'sys/netinet/tcp_input.c')
| -rw-r--r-- | sys/netinet/tcp_input.c | 15 |
1 files changed, 3 insertions, 12 deletions
diff --git a/sys/netinet/tcp_input.c b/sys/netinet/tcp_input.c index a77cc639190..287a45a4881 100644 --- a/sys/netinet/tcp_input.c +++ b/sys/netinet/tcp_input.c @@ -1,4 +1,4 @@ -/* $OpenBSD: tcp_input.c,v 1.306 2015/10/24 16:08:48 mpi Exp $ */ +/* $OpenBSD: tcp_input.c,v 1.307 2015/10/28 12:14:25 florian Exp $ */ /* $NetBSD: tcp_input.c,v 1.23 1996/02/13 23:43:44 christos Exp $ */ /* @@ -3045,22 +3045,13 @@ tcp_mss(struct tcpcb *tp, int offer) * for IPv6, path MTU discovery is always turned on, * or the node must use packet size <= 1280. */ - mss = IN6_LINKMTU(ifp) - iphlen - sizeof(struct tcphdr); + mss = ifp->if_mtu - iphlen - sizeof(struct tcphdr); } #endif /* INET6 */ /* Calculate the value that we offer in TCPOPT_MAXSEG */ if (offer != -1) { -#ifndef INET6 mssopt = ifp->if_mtu - iphlen - sizeof(struct tcphdr); -#else - if (tp->pf == AF_INET6) - mssopt = IN6_LINKMTU(ifp) - iphlen - - sizeof(struct tcphdr); - else - mssopt = ifp->if_mtu - iphlen - sizeof(struct tcphdr); -#endif - mssopt = max(tcp_mssdflt, mssopt); } @@ -3272,7 +3263,7 @@ tcp_mss_adv(struct mbuf *m, int af) #ifdef INET6 case AF_INET6: if (ifp != NULL) - mss = IN6_LINKMTU(ifp); + mss = ifp->if_mtu; iphlen = sizeof(struct ip6_hdr); break; #endif |